Bracelet.



H. R. HOLBROOK.

BRACELET. APPLIOATIQN FILED PEB. 12. 1907.

PATENTED MAR. 17, 1908.`

a citizenof the United UNITED sTATEs PATENT oEErcE.;

HARRY R. HOLBROOK; OF ATTLEBORO, MASSACHUSETTS.

BRACELET.

To all whom it may concern.'

Be it known that I, HARRY R. HoLBRooK,

States, residing at Attleboro, in the county of Bristol and Commonwealth of Massachusetts, have invented cer tain new and useful Improvements in Bracelets, of which the following is a specification. his invention relates to a lazy-tongs band for bracelets, collars ticularly to the provision of certain controlling and operating meansA therein by which certain novel features of action and adjustment are attained with possibilities of operation, affording a greatly increased usefulness in such articles as are abovesuggested, without at the same time adding any disturbing complexity or detracting from the aplpearance and beauty of the same. -ln artic es of this sort and particularly in bracelets or collars, it is extremely desirable to secure a wide degree of distention and at the same time in a s ring actuated device it is extremely desirable that the extreme of distention shall not come upon the spring in such a way as to unduly strain or Aover-tax the limit of elasticity thereof. It is also desirable in such a device that there be means for holding it in the open position while adjusting the same to the person of the wearer and yet be returnable to its contractible state without undue effort or awkwardness of movement.

To such ends the present invention contemplatesa structure involving a certaln arrangement of contactmg and inter-related arts by which a contractile influence is.

rought to bear upon the members of the lazy-tongs structure at certain positions thereof and in certain-other positions suspended to allow the continuance of a state of distention of theband.

The details of this structure will be more fully set forth in the lows and is illustrated in the accompanying drawings in which Figure 1, is a view of a band in a contracted state. Fig. 2, asimilar view in a distended state. Fig. 3, a view 0f a pair of contracted links with c'ap removed. Fig. 4, a similar View distended. Fig. 5, a section on the line 5 5 of Fig. 3, and, Fig. 6, a section on line 6 6 of Fig. 3. y

A are a series of link members connected at each end by a piv'ot c to one end of asimispecification which fol-- Specification of Letters Patent. Application med February 12 1907.

and t-he like, and parll I Patented March 17, 1908. Serial No. 356,958. i

,I link A, so that the series of links A and B are I pivoted together to form a lazy-tongs band.

On 'the link member B is mounted a frame D having at its opposite ends an u turned I flange d pierced Wlth an opening The frame D is preferably perforated at its center so that the stud C may pass freely therethrough.

E are plungers having heads e, and F are coiled springs interposed between the heads e and the flanges d for normally holding said heads in contact with the head c of the stud C. This head c of the stud C is with oppositely disposed tracted B, the

position of the pivoted links A and minor diameter is resented between the op ositely disposed pllfmgers E. In the disten( ed position of the band in which the crossed members A and B are swung open, the major axis of the stud head c is presented between flanges E. The surfaces G on the stud head c are preferably slightly curved as shown towards the sides H, so that an easier cam action is secured for the members in returning the crossed links A and B to their normal or closed position, as shown in Figs. When 'in the position shown in brings vthe major axis of the stud head C out I is a cover forthe link B, and K is a cover for the link exposed at any point.

It is obvious that the frame D could be dispensed with and the flanges, d struck up member A that in the confrom the link member B. It is also obvious that the device could -be operated with a single plunger and two faces on unequal diameters or that the stud head c could be made in other forms of a conventional cam.

Various other modifications in the form and arrangement of myinvention might be made without departing from the spirit of my invention.

What I therefore claim and desire to secure by Letters Patent, is:

l. In an article of the class described, a pair of lcrossed members, one of said members being pivoted on the other of said members by a stud ixed thereon7 a head on said stud having a pluralityT of diameters and a spring actuated part mounted on the other member co-acting with said head.

2. An article of the class described comprising a series of links composed of crossed members pivotally joined together at their ends and having a pivoted joint between the crossed members of each link at the point of crossing, a cam surface at the pivoted joint between the crossed members and attached to one thereof'and a spring pressed plunger onthe other member and adapted to contact with said cam surface.

3. An article of the prising a series of links of crossed members pivotally joined together at their ends and having a pivoted joint between the crossed members of each link at the point of crossing, a head having oppositely disposed cam surfaces at the pivoted joint between the crossed members and attached to onel thereof and a pair of oppositely disposed spring pressed plungers on the other member and adapted .to contact with said cam surfaces.

ln testimony whereof, I affix my signature in presence of two Witnesses. Y

HARRY R. HoLBRooK.

Witnesses:

HARRY F. PHILLIPS, JOHN E. FLYE.

class described comj 

